1255540523 has 2 divisors, whose sum is σ = 1255540524. Its totient is φ = 1255540522.

The previous prime is 1255540511. The next prime is 1255540543. The reversal of 1255540523 is 3250455521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255540523 is a prime.

It is a super-2 number, since 2×1255540523² = 3152764009790227058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1255540523.

It is not a weakly prime, because it can be changed into another prime (1255540543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627770261 + 627770262.

It is an arithmetic number, because the mean of its divisors is an integer number (627770262).

Almost surely, 2^1255540523 is an apocalyptic number.

1255540523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255540523 is an equidigital number, since it uses as much as digits as its factorization.

1255540523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 1255540523 is about 35433.6072535665. The cubic root of 1255540523 is about 1078.8065586306.

The spelling of 1255540523 in words is "one billion, two hundred fifty-five million, five hundred forty thousand, five hundred twenty-three".